Fingerboard vs. Strings

Hello. I dont know if this is the rigth topic to post under, but here we go:

I recently (like 1,5 weeks ago) got a set of Eurosonic Ultra Light strings.
I really like them. But unfortunatly my bass dont.
They are great for my rockabilly-slap playing, but there's a problem.
You see, when I play them they make this really annoying "bzzz" sound (mostely around the F-note on the D-string, and the B-note on the G-string).

I've tried to higher my adjustable brigde to get the string a little bit higher from the fingerboard to avoid the "bzzz"-reaction. But no use.

I called this luthier guy and he said I should bring the bass in next week and maybe he was going to have to sand the fingerboard down a bit.

Does anyone know another way I could try and do before I turn it in to him to see if I can fix it myself?

Thanx Nick. I guess I've tried all Im capable of doing then. It's in the hands of the luthier now.
I'd really hate to get new strings.. I really like the ones I got now. Well, I hope it works out.
If not, I guess I'll have to get a new bass hehe.